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Service bulletin A801304 2033806-

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10124643
Published by NHTSA2017-12-05
Manufacturer's numberA801304 2033806-
Manufacturer's date2013-08-09
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:WIRING

NHTSA's summary

Supersedes Technical Service Bulletin Group 80 number 13-03 dated May 13, 2013. Malfunction Indicator Lamp is on. Climate system heating performance is insufficient. Coolant level warning is on. Engine temperature is elevated. "Limp Home" mode is active. Faults are stored in the transmission control module. Coolant loss is found from one or more control valves: N82, N509, or N488. Coolant may have migrated into the wiring harness through the connector and into various control units. Climate system heating performance is insufficient due to coolant loss, or due to a faulty N82 control valve. Inspection of the coolant control valves N82, N509, or N488 reveals the presence of coolant inside the electrical connector. The connectors, wiring harness, and/or connected control units may have been damaged from exposure to coolant.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories, Heating and air conditioning, Wiring and fuses

Vehicles listed
AUDI A4 ALLROAD2013
AUDI A4 AVANT2012
AUDI A52012, 2013
AUDI A5 CABRIOLET2012 to 2013
AUDI A62012, 2013
AUDI A72012, 2013
AUDI A82010, 2011, 2012, 2013
AUDI Q52012, 2013
AUDI Q72011, 2012, 2013
AUDI TT ROADSTER2012 to 2013

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
17V6220002017-10-05. ELECTRICAL SYSTEM:WIRING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
A6824452038904_22024-03-06. Service bulletin. This bulletin provides information when the power outlet compartment is detached from the center console.
SM7020142023-09-25. Service bulletin. Pressure Switch
Edition96-12023-02-06. Service bulletin. i-wire new wiring diagram application
371421203682612022-11-21. Service bulletin. Gearbox warning light on.
A6420752058551_32020-08-06. Service bulletin. This bulletin contains repair instructions for when the window switch is malfunctioning by opening instead of closing as directed by customer input.
A961934 204892722019-04-01. Service bulletin. This informational bulletin contains instructions for minimizing the risk of an unintentional opening of the trunk lid with the remote.
A941323 2033675-2017-12-05. Service bulletin. Supersedes Technical Service Bulletin Group 94 number 13-17 dated May 22, 2013. DTC 03073 (Closed Rear Lid Sensor - Incorrect Signal) may be stored in the comfort system central control module, J393 (address word 46). In order for the vehicle to receive a proper rear lid status signal when the lid is operated, the paddle switches on the rear sill trim must contact the opposing lid latch points uniformly. When the rear lid is opened, the paddle switches change state and the comfort system central control module 2, J773, will read G525 and G526. It will then communicate to the comfort system central control module, J393.
A551332 2023967-2017-12-05. Service bulletin. Supersedes Technical Service Bulletin Group 55 number 13-30 dated May 28, 2013. "Low Oil Level" message is on in the DIS or MMI. The hood must be open for at least 30 seconds for a reset of this message to be performed. The message is not reset in the DIS/MMI because the hood has not been recognized as being opened due to an inoperative hood contact switch.
A551331 2033675-2017-12-05. Service bulletin. DTC 03073 (Closed Rear Lid Sensor - Incorrect Signal) may be stored in the comfort system central control module, J393 (address word 46). In order for the vehicle to receive a proper rear lid status signal when the lid is operated, the paddle switches on the rear sill trim must contact the opposing lid latch points uniformly. When the rear lid is opened, the paddle switches change state and the comfort system central control module 2, J773, will read G525 and G526. It will then communicate to the comfort system central control module, J393.
A911379 2033406-2017-11-17. Service bulletin. Front parking assistance does not work. The message: "ACC and Audi braking guard not available" may appear. Various DTCs present under the parking aid / parallel parking assistance control module, J791 (address word 10), for sensors in the front bumper. The complaint may or may not be reproducible. Water can get into the 8-pin connector between the central wiring harness and the front bumper harness.